Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high-performance CO2 capture
Development of a polyvinyl alcohol/sodium polyacrylate composite polymer membrane with cesium carbonate as a mobile carrier for high-performance CO2 capture
复制标题
开发以碳酸铯为移动载体的聚乙烯醇/聚丙烯酸钠复合聚合物膜用于高性能CO2捕集
DOI：
10.1002/pat.5630
复制
发表时间：
2022
影响因子：
3.4
通讯作者：
Hidetaka Yamada
中科院分区：
文献类型：
--
作者：
Fuminori Ito;Rie Sugimoto;Misato Mori;Hidetaka Yamada
使用碳酸盐、聚乙烯醇、丙烯酸聚合物部分钠盐交联产物和聚丙烯酸钠制备复合聚合物膜。在这项研究中，进一步提高这些膜的分离性能的CO2/He混合气体的因素进行了研究。证实了所制备的膜在压力下不提供稳定的分离，除非它们具有2.0 μm的厚度。此外，在没有碳酸盐添加剂的情况下，它们不能用作高性能分离膜;通过考虑总压力的影响来确定最佳碳酸盐浓度范围。因此，这项工作产生了高性能的CO2选择性渗透膜，在0.1和0.7 MPa下的选择性分别超过500和150，用于在85°C下分离CO2/He（80/20）气体混合物。
Composite polymer membranes were prepared using carbonate, polyvinyl alcohol, an acrylic acid polymer partial sodium salt cross‐linked product, and sodium polyacrylate. In this study, the factors for further improving the separation performance of these membranes for the CO2/He mixed gas were investigated. It was confirmed that the prepared membranes did not provide stable separation under pressure unless they had a thickness of 2.0 μm. Moreover, they could not function as high‐performance separation membranes without a carbonate additive; the optimal carbonate concentration range was determined by considering the effect of the total pressure. As a result, this work produced a high‐performance, CO2selective permeable membrane with selectivities of more than 500 and 150 at 0.1 and 0.7 MPa, respectively, for the separation of a CO2/He (80/20) gas mixture at 85°C.